[특허]Gas separation by rapid pressure swing adsorption

Gas separation by rapid pressure swing adsorption 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01D-053/04
출원번호	US-0615075 (1990-11-19)
발명자 / 주소	Sircar Shivaji (Wescosville PA)
출원인 / 주소	Air Products and Chemicals, Inc. (Allentown PA 02)
인용정보	피인용 횟수 : 72 인용 특허 : 0

초록 ▼

A rapid adiabatic pressure swing adsorption process with a total cycle time ranging from 6 to 60 seconds with feed being introduced into a single separation vessel having dual adsorption layers operated alternately by a pressurized continuous feed gas involving a continuous feed and two continuous p

대표청구항 ▼

In a rapid adiabatic pressure swing adsorption process for the separation of a multi-component feed gas by selectively adsorbing at least one component in a single adsorbent vessel by introducing a compressed feed gas alternatively into opposing portions of the vessel, the improvement comprising the steps of: (a) providing one or more adsorption zone(s) comprising dual, spaced apart, relatively shallow depth first and second adsorption layers, with each adsorbent layer comprised of relatively small size range of particles, such particles being adapted to more selectively adsorb a first component A than a second component B, both contained in said feed gas; (b) passing at least a first portion of feed gas continuously through one or more of said first layer(s) of the adsorbent and withdrawing a first portion of a component B-rich gas stream from said first layer(s) as comparatively high pressure stream(s) to a product conduit; (c) concurrently passing a second portion of said component-B gas stream(s) after an induced pressure drop through said one or more second layer(s) of adsorbent countercurrent to feed gas flow through that layer to purge retained component A therefrom and to withdraw component A gas to one or more first waste gas conduit(s); (d) upon the component B-rich product gas stream purity in said product conduit declining to a preset maximum permissible level for the component A content, switching the compressed feed gas flow to the one or more second layer(s) of adsorbent to withdraw a first portion of component B-rich gas stream(s) to a product conduit while said one or more first layers are purged with the one or more second portion(s) of the component B-rich gas stream produced from said one or more second adsorbent layer(s); and (e) upon the component B-rich gas stream purity in said product conduit declining to a preset maximum permissible level for the component A content, again reversing the compressed feed gas flow to the mode of step (b).

이 특허를 인용한 특허 (72)

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Gas separation by rapid pressure swing adsorption 원문보기

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Gas separation by rapid pressure swing adsorption 원문보기

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